diff --git a/packages/cli/src/reporters/__tests__/__snapshots__/json-builder.spec.ts.snap b/packages/cli/src/reporters/__tests__/__snapshots__/json-builder.spec.ts.snap
index 85cc4508..6a511cb4 100644
--- a/packages/cli/src/reporters/__tests__/__snapshots__/json-builder.spec.ts.snap
+++ b/packages/cli/src/reporters/__tests__/__snapshots__/json-builder.spec.ts.snap
@@ -1,31 +1,5 @@
 // Jest Snapshot v1, https://goo.gl/fbAQLP
 
-exports[`JsonBuilder renders JSON markdown output with assets & links: json-with-assets-links 1`] = `
-"{
-  "testSessionId": "0c4c64b3-79c5-44a6-ae07-b580ce73f328",
-  "numChecks": 2,
-  "runLocation": "eu-west-1",
-  "checks": [
-    {
-      "result": "Pass",
-      "name": "my-test.spec.ts",
-      "checkType": "BROWSER",
-      "durationMilliseconds": 6522,
-      "filename": "src/__checks__/folder/browser.check.ts",
-      "link": "https://app.checklyhq.com/test-sessions/0c4c64b3-79c5-44a6-ae07-b580ce73f328/results/702961fd-7e2c-45f0-97be-1aa9eabd4d82"
-    },
-    {
-      "result": "Pass",
-      "name": "Test API check",
-      "checkType": "API",
-      "durationMilliseconds": 1234,
-      "filename": "src/some-other-folder/api.check.ts",
-      "link": "https://app.checklyhq.com/test-sessions/0c4c64b3-79c5-44a6-ae07-b580ce73f328/results/1c0be612-a5ec-432e-ac1c-837d2f70c010"
-    }
-  ]
-}"
-`;
-
 exports[`JsonBuilder renders basic JSON output with no assets & links: json-basic 1`] = `
 "{
   "numChecks": 2,
@@ -37,7 +11,8 @@ exports[`JsonBuilder renders basic JSON output with no assets & links: json-basi
       "checkType": "BROWSER",
       "durationMilliseconds": 6522,
       "filename": "src/__checks__/folder/browser.check.ts",
-      "link": null
+      "link": null,
+      "runError": null
     },
     {
       "result": "Pass",
@@ -45,7 +20,8 @@ exports[`JsonBuilder renders basic JSON output with no assets & links: json-basi
       "checkType": "API",
       "durationMilliseconds": 1234,
       "filename": "src/some-other-folder/api.check.ts",
-      "link": null
+      "link": null,
+      "runError": null
     }
   ]
 }"
diff --git a/packages/cli/src/reporters/__tests__/fixtures/api-check-result.ts b/packages/cli/src/reporters/__tests__/fixtures/api-check-result.ts
index 83f28c18..eb98ad30 100644
--- a/packages/cli/src/reporters/__tests__/fixtures/api-check-result.ts
+++ b/packages/cli/src/reporters/__tests__/fixtures/api-check-result.ts
@@ -135,4 +135,5 @@ export const apiCheckResult = {
     requestError: null,
   },
   scheduleError: '',
+  runError: '',
 }
diff --git a/packages/cli/src/reporters/__tests__/fixtures/browser-check-result.ts b/packages/cli/src/reporters/__tests__/fixtures/browser-check-result.ts
index a760b8d8..e559374f 100644
--- a/packages/cli/src/reporters/__tests__/fixtures/browser-check-result.ts
+++ b/packages/cli/src/reporters/__tests__/fixtures/browser-check-result.ts
@@ -159,4 +159,5 @@ export const browserCheckResult = {
     },
   ],
   scheduleError: '',
+  runError: '',
 }
diff --git a/packages/cli/src/reporters/__tests__/helpers.ts b/packages/cli/src/reporters/__tests__/helpers.ts
index 1f2672c2..cb01d704 100644
--- a/packages/cli/src/reporters/__tests__/helpers.ts
+++ b/packages/cli/src/reporters/__tests__/helpers.ts
@@ -2,7 +2,11 @@ import { checkFilesMap } from '../abstract-list'
 import { browserCheckResult } from './fixtures/browser-check-result'
 import { apiCheckResult } from './fixtures/api-check-result'
 
-export function generateMapAndTestResultIds ({ includeTestResultIds = true }) {
+export function generateMapAndTestResultIds ({ includeTestResultIds = true, includeRunErrors = false }) {
+  if (includeRunErrors) {
+    browserCheckResult.runError = 'Run error'
+    apiCheckResult.runError = 'Run error'
+  }
   const checkFilesMapFixture: checkFilesMap = new Map([
     ['folder/browser.check.ts', new Map([
       [browserCheckResult.checkRunId, {
diff --git a/packages/cli/src/reporters/__tests__/json-builder.spec.ts b/packages/cli/src/reporters/__tests__/json-builder.spec.ts
index 2dc4d2ea..58e58329 100644
--- a/packages/cli/src/reporters/__tests__/json-builder.spec.ts
+++ b/packages/cli/src/reporters/__tests__/json-builder.spec.ts
@@ -14,6 +14,16 @@ describe('JsonBuilder', () => {
     }).render()
     expect(json).toMatchSnapshot('json-basic')
   })
+  test('renders basic JSON output with run errors', () => {
+    const checkFilesMap = generateMapAndTestResultIds({ includeTestResultIds: false, includeRunErrors: true })
+    const json = new JsonBuilder({
+      testSessionId: undefined,
+      numChecks: checkFilesMap.size,
+      runLocation,
+      checkFilesMap,
+    }).render()
+    expect(json).toMatchSnapshot('json-basic')
+  })
   test('renders JSON markdown output with assets & links', () => {
     const checkFilesMap = generateMapAndTestResultIds({ includeTestResultIds: true })
     const json = new JsonBuilder({
diff --git a/packages/cli/src/reporters/json.ts b/packages/cli/src/reporters/json.ts
index b94a104c..5c9dae91 100644
--- a/packages/cli/src/reporters/json.ts
+++ b/packages/cli/src/reporters/json.ts
@@ -48,6 +48,7 @@ export class JsonBuilder {
           durationMilliseconds: result.responseTime ?? null,
           filename: null,
           link: null,
+          runError: result.runError || null,
         }
 
         if (this.hasFilenames) {